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3 years ago

Each of 8 students reported the number of movies they saw in the past year. This is what they reported:

Mathematics

2 answers:

andrew11 [14]3 years ago

5 0

The mean is 10.75
the median is 11
the mode is 11

elena-14-01-66 [18.8K]3 years ago

3 0

Answer:

10.75

Step-by-step explanation:

the mean is the average, so add up all of the values and divide by 8 because there are 8 values :

(11 + 17 + 14 + 11 + 4 + 7 + 11 + 11)/8 = 10.75

the median is the middle value when the numbers are written in ascending or descending order :

4, 7, 11, 11, 11, 11, 14, 17

we can cross out the values on the ends, to get to the middle. if we do this, we are left with 11, 11

find the average of these numbers :

which is 11.

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Factor completely.<br><br> 3x^2 −147=

erica [24]

Answer:

$3(x - 7)(x+7)$

Step-by-step explanation:

To factor this, you must first take out the GCF (Greatest Common Factor), that $3x^2$ and -147 both have. The terms only have 3 in common, which can be divided with

$3x^2 - 147\\3(x^2 - 49)$

However, we're still not done since 49 is a perfect square and $(x^2 - 49)$ can be split into 2, like so:

$3(x - 7)(x+7)$

If you're unsure about the final answer, you can multiply it all together to see if you got the original expression.

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2 years ago

Hii Please Answer ASAP and only if you know the answer! :P I will give brainliest to right answer!! :)

olga nikolaevna [1]

Answer:

Step-by-step explanation:

Here so u can give that person brainliest

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2 years ago

Find the volume of a cylinder with a radius of 3 meters and a height of 13 meters. Use 3.14 The volume of the cylinder is Type a

zvonat [6]

<h2><u>Question</u>:-</h2>

Find the volume of a cylinder with a radius of 3 meters and a height of 13 meters.

<h2><u>Answer</u>:-</h2>

<h3>Given:-</h3>

$\bullet$ Radius (r) of a cylinder = 3 meters.

$\bullet$ Height (h) of a cylinder = 13 meters.

The volume of a cylinder.

<h2>Solution:-</h2>

We know,

Formula of Volume of a cylinder is πr²h.

So, Volume of a cylinder = 3.14 × (3)² × 13

Volume of a cylinder = 3.14 × 3 × 3 × 13

Volume of a cylinder = 367.38 cubic meters.

<h3>The volume of a cylinder is <u>3</u><u>6</u><u>7</u><u>.</u><u>3</u><u>8</u><u> </u><u>cubic </u><u>meters</u>. [Answer]</h3>

4 0

2 years ago

Jason sells tires and makes 15% commission. If he sold a total of $850 last week, how much commission will he earn?

Anastaziya [24]

Answer:

$127.5

Step-by-step explanation:

15% of $850 is 850 times .15 (% is decimal multiplied by 100)

850 * .15 = $127.50

6 0

3 years ago

Can anyone help me find the area of these two ty

Sphinxa [80]

Answer:

11) 49 in.²

13) 4.515 m²

Step-by-step explanation:

11) area of square = (side)²

area = (7 in.)² = 7 in. × 7 in. = 49 in.²

13) area of triangle = base × height/2

area = 4.3 m × 2.1 m / 2 = 4.515 m²

8 0

2 years ago